Acetylene-gas generator.



No. 656,560. Patented Aug. 2|, |906.

w. H. MITCHELL 6 w. A. ARMSTRONG.'

ACETYLENE 66s GENERATOR. (Applcation filed Oct. 2, i899.)

(No Model.)

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NITED STATES wILLIAM II. MITCHELL,

VPATENT OFFICE,

DONIPHAN, MISSOURI.

ACE TYLEN ipa-etre iGEN ERAT'O' R. Q

fsPnoIFIcAcrIoNforming part of Lettersratent N o. 656,560, dated August '21, 1900.

` Appleman nea october 2,1899. Senn No. 732,316. on modem To a/ZZ whom, it mayconcern: y

Beit known that we, WILLIAM H. MITOH- ELL, of the city of St.l Louis, and WILLIAM A. .ARMS'JJRONG,` of Doniphan, Ripley county, State of Missouri, have invented certain new and useful Improvements in Acetylene-Gas Generators, of which the following isa full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

Our invention relates to acetylene-gas gen-` erators; and it` consists of thenovel construction, combination, and arrangement of parts hereinafter shown, described, `and claimed.

The object of this invention is to construct a device `for generating acetylene gas provided with a means for automatically regulating the passage o f Water upon the carbid within the generator and a meanswhereby the connection ybetween the generator and gasometer must be cut Oft before the door of the generator can be opened.

Figure 1 isa perspective view of our complete invention. Fig. 2 is a vertical sectional View of the gasometer, showingits interior construction. the carbid-pan made use of in connection with our invention. Fig. 4t isa vertical ysectional view of a part of i the generator and carbidpan, showing their connection. In the construction of the device as shown we-provide a water-tank 1, mounted upon a condensation-chamber 2,`which is ot suitable height and is provided on its outer surface with brackets 3 for supporting a generator 4. Upon the top and tor one side of the tank 1 we provide a lling-lip 5, which is for the purpose of filling said tank with water. Within ,the tank 1 we place the gasometer 6,.provided at its top witha cover 7, having three caps 8 and 9, which act as chambers and recesses, in which the'ends of` pipes may project. The bottom 10 of the gasometer is open, as shown in Fig. 2. The gasometer G is arranged to be raised by means of the gas and is guided upon a guide-frame 11, suitably secured to the sides of the water-tank 1', and said gasometer is guided uponksaid guideframe by brackets 12, secured to the cover 7, and is right-angular in form, and its free end 13 is passed loosely around the vertical members of the guideframe 11.

Fig. 3 is a perspective view of` To one side of the water-tank 1 we support in any desirable manner a smaller water-tank 14, which is provided at its bottom with a water-pipe 15,which extends downwardly and suitably bent and extending again upwardly and bent at right anglesand secured to a cutoi valve 16. This arrangement is for the purpose of preventing any gas from the generator from passing into the water-tank 14C, as the lower ends of the vertical pipes v15 act as a seal andare at all times iilled with water. From the cut-o valve 16 extends a pipe 17,`which` passes downwardly and connects the generator 4, extending through its top 1S, as shown by dotted lines in Fig.4`. e

At the top of the generator and extending therethrough is a pipe 19, which is connected to a valve 20, to which is connected the supplypipe 21, extending downwardly and through the condensationchamber andf connecting a Vpipe 22, which extends vertically through the water-tank to a height a short distanceabove its waterelevel. Upon the top ot' the valve 2O we apply a pipe 23, which is arranged at right angles, passing around the water-tank 1 and connected to a blow-oit pipe`24. Said pipe 24 extends downwardly,is bent at right angles, and passes through the condensation-A chamber 2, connecting a pipe 25, which also extends vertically through thewater-tank 1, projecting a short distance above the waterlevel.' Each of the, pipes 22 and 25 extends downwardl-y a' short distance below the horizontal pipe connections and are used as drip-` pipes 26. This is for the purpose in case any ofthe gas should condense within said pipes it will allow the same to pass therefrom and enter the condensation-chamber, thus preventing any water from passing within thel service-pipes.

The valve 2O is provided with a handle 27, which is suitably `bent and extends downwardly and is provided with two projecting arms 28 and 29, the arm 29 coming in close communication with a door 30 of the generator 4 and the arm 28 coming in communication with the tightening-screw- 31, which is used for bringing the door 30Min close communication with the opening ofthe genera tor for making a gastight joint. The tightening-screw 3l is passed through a frame 32, consisting of three arms, two of which pro- IOO . ject at an angle. and act as hinges for the door 30, the horizontal arm being remove the handle 27 from its position in.

front of said door, and by doing this it will close the valve 20, thereby closing the conf..

nection between the generator 4 and the gasometer, thus preventing any gas from re'-v turning from the gasometer 6 back into the generator while the door is open. The hanv dle 27 acts as a safeguard, andv no mistake can ever be made, as the door 30,cannot be opened until the handle 27 is pushed aside. Thedoor 30 is provided on its inner surface with projections 36 and designed to come in communication with a rubber packing 37, formed within the iange of the generator. This construction is for the lpurpose of providing a gas-tight joint at this point.

The upper inner surface of the generator is provided with a detent 38, which extends downwardly a short distance and is designed for the purpose to come in contact with a lug 39, formed on the end 40 of the carbid-pan 41, its purpose being to prevent said panV 41 from being placed within the generator rear foremost. The carbid pan 41 is provided with a plurality of cells 42, each having a passage 43 for allowing the water to pass from one into the other. The arrangement of the cells may clearly be seen by referring to Fig. 3. It will be observed that each cell is connected to the other by said cut-off portion 43, and the water which is allowed to drip upon the carbid 44, placed within the cell a, will be'allowed to pass through the cut-away portion in its partition after the same has been filled and ill the cell b, and so on until the water reaches the cell c, and after said cell has been filled it passes through the cut-away portion 45 and enters the cell d and passes from one to the other, as indicated by the ary rows. By this arrangement the water is allowed to pass in only one of the cells indicatedbytheletterct. Afterthecarbidwithin the cell a has been Vcompletely decomposed and the gas generated thereby passed through the pipe 19 into the gasometer the water will then pass upon the adjoining cell b, and so on, cell by cell, until all the carbid in the entire number of cells is decomposed.

Upon the top of the gasometer 6 we place a bracket 46, to which vis secured in any desirable manner a rod 47, extending downwardly and .provided with an angular bend 448, forming a slotv49, in which is adapted to operate when brought in communication a pin 50, formed on the double arm 51, connected to the cut-off valve 16. It will be observed by referring to Fig. 1 that said arm 51 is arranged in duplicate. This is for the purpose to allow said valve to be operated, no

lated. When the carbid in the pan 41 is completely matter in what position said rod 47 may be. The lower projection of the arm 47 below the bend 48 is guided in the guide 52, secured in any desirable manner to the side of the watertank 1. By this arrangementof rod 47 and arm 51 the water-supply in the tank 14 is regudecomposed and gas from the gasometer consumed, said gasometer will be allowed to as- -sume a lowering position, and when the same is near its lowest point the bend 48 will come yin communication with the pin 50 of the arm 51, turningthesame, and thereby cutting off the supply of water within the generator, thus preventing an overflow within said generator.

The object of providing the chambers 8 and 9 upon thecover 7 is. to allow said tank to assume a very low position, bringing the waterlevel of the water-tank close to its top, thus allowing but little space within the top of said gasometer, so that almost all of the gas can be utilized. Within the center of the gasometer connecting the chamber 9 we provide a tube 53, extending downwardly and provided with apertures 54 near its bottom. This tube is placed over a pipe 55, extending upwardly near th`e top of said chamber 9, and is secured at its bottom to a pipe 56, which is passed outwardly through the condensationchamber to a point .of escape. This is for the purpose that when the gasometer is raised by means of the gas-pressure to a point where the apertures 54 will rise above the waterlevel the gas will then escape t rough said apertures and pass upwardly and downwardly through the pipe 55 into the pipe 56, Where it is allowed to escape from the building into the open air.-l This is to preventthe gas from raising the gasometer from the water-tank in case of an overpressure.

At one side near the bottom of the condensation-chamber we provide a filler 57 ,by which the condensation-cham ber is filled with water and is allowed to be filled to a level with the top of said filler. We also provide the watertank 1 and the condensation-chamber with a plug 5S, by which the water and its sediment can be drained therefrom.

We claim- An acetylene-gas generator having a small water-tank, a suitably-bent seal-pipe leading from said tank, a valve in said pipe, arms integral with said valve, pins 50 carried by said arms, a rod 47 carried by the gasometer, said rod having an angleA 4S and a slot 49 which are for the purpose of engaging the pins 50 thereby operating the valve 16 at suitable times as the said rod is elevated or lowered by the gasometer, substantially as specified.

In testimonyv whereof we affix our signatures in presence of two witnesses.

WILLIAM H. MITCHELL. VILLIAM A. ARMSTRONG. Witnesses:

JOHN D. RIPPEY, JOHN C. HIGDoN.

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